JPS56149410A - Propylene copolymer - Google Patents

Propylene copolymer

Info

Publication number
JPS56149410A
JPS56149410A JP5265880A JP5265880A JPS56149410A JP S56149410 A JPS56149410 A JP S56149410A JP 5265880 A JP5265880 A JP 5265880A JP 5265880 A JP5265880 A JP 5265880A JP S56149410 A JPS56149410 A JP S56149410A
Authority
JP
Japan
Prior art keywords
linear
olefin
copolymer
field
foods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5265880A
Other languages
Japanese (ja)
Inventor
Masayuki Fujii
Mitsutaka Miyabayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Petrochemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP5265880A priority Critical patent/JPS56149410A/en
Priority to US06/152,605 priority patent/US4308361A/en
Priority to DE19803019986 priority patent/DE3019986A1/en
Priority to GB8017744A priority patent/GB2052532B/en
Publication of JPS56149410A publication Critical patent/JPS56149410A/en
Pending legal-status Critical Current

Links

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  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: A copolymer having specified properties and composition, keeping excellent flexibility and transparency, having high heat resistance and being suitably used in the field of medical articles and foods, prepared by copolymerizing propylene with a linear α-olefin.
CONSTITUTION: A copolymer prepared by copolymerizing propylene with a C5W12 linear α-olefin and having (A) a limiting viscosity of 0.3W15dl/g (in decalin, 135°C), (B) a C5W12 linear α-olefin content of 3W30wt% and (C) percentages of fractions obtained from consecutive extraction with o-dichlorobenzene at 40°C and 80°C, melting peak temperatures measured on a differential scanning calorimeter (DSC) and linear α-olefin contents, tabulated in the table. The copolymer thus specified shows high heat resistance without loosing its excellent flexibility and transparency and therefore has a probable use in the field of medical articles such as liquid transfer bags and blood bags and in the field of foods, for example, squeeze bottles for mayonnaise or ketchup.
COPYRIGHT: (C)1981,JPO&Japio
JP5265880A 1979-06-01 1980-04-21 Propylene copolymer Pending JPS56149410A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5265880A JPS56149410A (en) 1980-04-21 1980-04-21 Propylene copolymer
US06/152,605 US4308361A (en) 1979-06-01 1980-05-23 Propylene copolymers
DE19803019986 DE3019986A1 (en) 1979-06-01 1980-05-24 PROPYLENE MIXED POLYMERS
GB8017744A GB2052532B (en) 1979-06-01 1980-05-30 Copolymers of propylene and straight chain c5-c12 alpha olefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5265880A JPS56149410A (en) 1980-04-21 1980-04-21 Propylene copolymer

Publications (1)

Publication Number Publication Date
JPS56149410A true JPS56149410A (en) 1981-11-19

Family

ID=12920954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5265880A Pending JPS56149410A (en) 1979-06-01 1980-04-21 Propylene copolymer

Country Status (1)

Country Link
JP (1) JPS56149410A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253992A (en) * 1975-10-28 1977-04-30 Mitsubishi Chem Ind Ltd Process for producing propylene copolymers
JPS53104686A (en) * 1977-02-25 1978-09-12 Mitsui Petrochem Ind Ltd Preparation of copolymer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253992A (en) * 1975-10-28 1977-04-30 Mitsubishi Chem Ind Ltd Process for producing propylene copolymers
JPS53104686A (en) * 1977-02-25 1978-09-12 Mitsui Petrochem Ind Ltd Preparation of copolymer

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